Knocking after using cng

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Knocking after using cng

i recently installed a landi renzo cng kit in my city 2002, i ran it on gas for approximately 2 weeks, after that when i used petrol, i can hear knocking from the engine and other weird sounds. Any ideas?

Gari.pk User 944 asked on 18 Jun 2010 13:12:49 pm

1 Answer

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Huzaifa - on 18 Jun 2010 13:13:01 pm

hello!
i think the timings are advanced for CNG....as u run on petrol so its much advances for petrol resulting in knocking......it occurs...if u wanna run ur car on petrol so be settle the timing for petrol.....over advancing cause this....so thats the timing problem....
Thanxx